85f2668898
bootloader's smp init and into its own unit. ACPI tables can now generally be found with acpi_find_table(signature). git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26538 a95241bf-73f2-0310-859d-f6bbb57e9c96
73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
/*
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* Copyright 2008, Dustin Howett, dustin.howett@gmail.com. All rights reserved.
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* Copyright 2007, Michael Lotz, mmlr@mlotz.ch. All rights reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _KERNEL_ARCH_x86_ARCH_ACPI_H
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#define _KERNEL_ARCH_x86_ARCH_ACPI_H
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#define ACPI_RSDP_SIGNATURE "RSD PTR "
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#define ACPI_RSDT_SIGNATURE "RSDT"
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#define ACPI_MADT_SIGNATURE "APIC"
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#define ACPI_LOCAL_APIC_ENABLED 0x01
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typedef struct acpi_rsdp {
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char signature[8]; /* "RSD PTR " including blank */
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uint8 checksum; /* checksum of bytes 0-19 (per ACPI 1.0) */
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char oem_id[6]; /* not null terminated */
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uint8 revision; /* 0 = ACPI 1.0, 2 = ACPI 3.0 */
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uint32 rsdt_address; /* physical memory address of RSDT */
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uint32 rsdt_length; /* length in bytes including header */
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uint64 xsdt_address; /* 64bit physical memory address of XSDT */
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uint8 extended_checksum; /* including entire table */
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uint8 reserved[3];
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} _PACKED acpi_rsdp;
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typedef struct acpi_descriptor_header {
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char signature[4]; /* table identifier as ASCII string */
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uint32 length; /* length in bytes of the entire table */
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uint8 revision;
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uint8 checksum; /* checksum of entire table */
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char oem_id[6]; /* not null terminated */
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char oem_table_id[8]; /* oem supplied table identifier */
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uint32 oem_revision; /* oem supplied revision number */
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char creator_id[4]; /* creator / asl compiler id */
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uint32 creator_revision; /* compiler revision */
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} _PACKED acpi_descriptor_header;
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typedef struct acpi_madt {
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acpi_descriptor_header header; /* "APIC" signature */
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uint32 local_apic_address; /* physical address for local CPUs APICs */
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uint32 flags;
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} _PACKED acpi_madt;
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enum {
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ACPI_MADT_LOCAL_APIC = 0,
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ACPI_MADT_IO_APIC = 1
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};
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typedef struct acpi_apic {
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uint8 type;
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uint8 length;
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} _PACKED acpi_apic;
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typedef struct acpi_local_apic {
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uint8 type; /* 0 = processor local APIC */
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uint8 length; /* 8 bytes */
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uint8 acpi_processor_id;
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uint8 apic_id; /* the id of this APIC */
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uint32 flags; /* 1 = enabled */
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} _PACKED acpi_local_apic;
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typedef struct acpi_io_apic {
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uint8 type; /* 1 = I/O APIC */
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uint8 length; /* 12 bytes */
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uint8 io_apic_id; /* the id of this APIC */
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uint8 reserved;
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uint32 io_apic_address; /* phyisical address of I/O APIC */
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uint32 interrupt_base; /* global system interrupt base */
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} _PACKED acpi_io_apic;
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#endif /* _KERNEL_ARCH_x86_ARCH_ACPI_H */
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